What confidence level are all the effects significant

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Reference no: EM132096472

Consider the estimated main effects given below for a 90% confidence level where 10 sets of tests were performed:

E1 = -0.17 ± 0.13

E2 = -1.83 ± 0.29

E3 = -0.07 ± 0.09

E4 = 1.0 ± 0.9

a) Which effect(s) is/are statistically insignificant at the 90% confidence level?

b) At what confidence level are all the effects significant?

Reference no: EM132096472

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